Wireshark · Ethereal-dev: [ethereal-dev] dfilter_apply_node assfail glib-1.2.5 G_NODE_IS_ROOT

[Dewi Morgan <dewim@xxxxxxx>]

I have found a minor (but irritating when I misstype) assert failure detailed
below, dfilter_apply_node() is being called with gnode == NULL

# ./ethereal &  ;# invoked ethereal-0.7.5 with no options

1. obtain a live capture, update list of packets real time
2. <stop> capture
3. apply (incorrect) filter in main window "ip & udp" <return>
4. get a warning window "Unable to parse filter string"
5. correct the filter in main window "ip && udp" <return>
6. GLib-CRITICAL **: file glib-1.2.5/gnode.c: line 218
(g_node_insert_before):
   assertion `G_NODE_IS_ROOT (node)' failed.  core dump backtrace below


freebsd release 3.2
glib vers 1.25
gtk+ vers 1.25
libpcap vers 0.4
ethereal version 0.75

$ gtk-config --version
1.2.5

$ gdb ethereal ethereal.core
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This GDB was configured as "i386-unknown-freebsd"...
Core was generated by `ethereal'.
Program terminated with signal 11, Segmentation fault.
Reading symbols from /usr/lib/libz.so.2...done.
Reading symbols from /usr/local/lib/libgtk-1.2.so.5...done.
Reading symbols from /usr/local/lib/libgdk-1.2.so.5...done.
Reading symbols from /usr/local/lib/libgmodule-1.2.so.0...done.
Reading symbols from /usr/local/lib/libglib-1.2.so.0...done.
Reading symbols from /usr/X11R6/lib/libXext.so.6...done.
Reading symbols from /usr/X11R6/lib/libX11.so.6...done.
Reading symbols from /usr/lib/libm.so.2...done.
Reading symbols from /usr/lib/libc.so.3...done.
Reading symbols from /usr/libexec/ld-elf.so.1...done.
#0  dfilter_apply_node (gnode=0x0, ptree=0x81a6f84, pd=0x80dfbf8 "")
    at dfilter.c:340
340             dfilter_node    *dnode = (dfilter_node*) (gnode->data);
(gdb) backtrace
#0  dfilter_apply_node (gnode=0x0, ptree=0x81a6f84, pd=0x80dfbf8 "")
    at dfilter.c:340
#1  0x8057a44 in check_logical (operand=271, a=0x815802c, b=0x0,
    ptree=0x81a6f84, pd=0x80dfbf8 "") at dfilter.c:397
#2  0x80578dc in dfilter_apply_node (gnode=0x81a6f70, ptree=0x81a6f84,
    pd=0x80dfbf8 "") at dfilter.c:354
#3  0x805783f in dfilter_apply (dfcode=0x80fe5f0, ptree=0x81a6f84,
    pd=0x80dfbf8 "") at dfilter.c:332
#4  0x805989d in add_packet_to_packet_list (fdata=0x8117c00, cf=0x80dfb7c,
    buf=0x80dfbf8 "") at file.c:518
#5  0x8059dd6 in filter_packets (cf=0x80dfb7c) at file.c:733
#6  0x8095ce4 in filter_activate_cb (w=0x812ba00, data=0x0) at main.c:359
#7  0x2817a56b in gtk_marshal_NONE__NONE (object=0x812ba00,
    func=0x8095c88 <filter_activate_cb>, func_data=0x0, args=0xbfbfd164)
    at gtkmarshal.c:312
#8  0x281a516e in gtk_handlers_run (handlers=0x8128100, signal=0xbfbfd120,
    object=0x812ba00, params=0xbfbfd164, after=0) at gtksignal.c:1909
#9  0x281a467c in gtk_signal_real_emit (object=0x812ba00, signal_id=103,
    params=0xbfbfd164) at gtksignal.c:1469
#10 0x281a2a04 in gtk_signal_emit (object=0x812ba00, signal_id=103)
    at gtksignal.c:552
#11 0x281d4cfc in gtk_widget_activate (widget=0x812ba00) at gtkwidget.c:2869
#12 0x281554d3 in gtk_entry_key_press (widget=0x812ba00, event=0x8150018)
    at gtkentry.c:1118
---Type <return> to continue, or q <return> to quit---
#13 0x2817a249 in gtk_marshal_BOOL__POINTER (object=0x812ba00,
    func=0x281551cc <gtk_entry_key_press>, func_data=0x0, args=0xbfbfd4c4)
    at gtkmarshal.c:28
#14 0x281a46b3 in gtk_signal_real_emit (object=0x812ba00, signal_id=26,
    params=0xbfbfd4c4) at gtksignal.c:1484
#15 0x281a2a04 in gtk_signal_emit (object=0x812ba00, signal_id=26)
    at gtksignal.c:552
#16 0x281d4bd8 in gtk_widget_event (widget=0x812ba00, event=0x8150018)
    at gtkwidget.c:2843
#17 0x281dbc6a in gtk_window_key_press_event (widget=0x80f6700,
    event=0x8150018) at gtkwindow.c:1169
#18 0x2817a249 in gtk_marshal_BOOL__POINTER (object=0x80f6700,
    func=0x281dbb64 <gtk_window_key_press_event>, func_data=0x0,
    args=0xbfbfd820) at gtkmarshal.c:28
#19 0x281a46b3 in gtk_signal_real_emit (object=0x80f6700, signal_id=26,
    params=0xbfbfd820) at gtksignal.c:1484
#20 0x281a2a04 in gtk_signal_emit (object=0x80f6700, signal_id=26)
    at gtksignal.c:552
#21 0x281d4bd8 in gtk_widget_event (widget=0x80f6700, event=0x8150018)
    at gtkwidget.c:2843
#22 0x2817a155 in gtk_propagate_event (widget=0x80f6700, event=0x8150018)
    at gtkmain.c:1298
#23 0x28179532 in gtk_main_do_event (event=0x8150018) at gtkmain.c:770
#24 0x28218d12 in gdk_event_dispatch (source_data=0x0,
---Type <return> to continue, or q <return> to quit---
    current_time=0xbfbfdba0, user_data=0x0) at gdkevents.c:2129
#25 0x28243b67 in g_main_dispatch (current_time=0xbfbfdba0) at gmain.c:656
#26 0x2824414f in g_main_iterate (block=1, dispatch=1) at gmain.c:874
#27 0x282442d1 in g_main_run (loop=0x81432b0) at gmain.c:932
#28 0x28178ecf in gtk_main () at gtkmain.c:476
#29 0x8097194 in main (argc=1, argv=0xbfbfdc60) at main.c:918
(gdb) q